Pressure-regulator



'(No Model.)

W J MORGAN PRESSURE REGULATOR.

No. 539,532. Patented May 21, 1895. v

Wilgzssas UNITED STATES,

PATENT Orricn.

WILLIAM J. MORGAN, OF KANSAS CITY, MISSOURI.

-PRES SURE-REGULATOR.

SPECIFICATION forming part of Letters Patent No. 539,532, dated May 21,1895.

Application filed October 13, 1894:. Serial No. 525,834. (No model.)

To aZZ whom it may concern.-

Be it known that 1, WILLIAM J. MORGAN, a citizen of the United States,residing at Kansas City, in the county of Jackson and State of Missouri,have invented a new and useful Steam-Pressure Regulator, of which thefollowing is a specification.

My invention relates to a steam pressure regulator adapted for use inconnection with steam radiators and capable of use also as a backpressure valve, and the objects in view are to provide a simple, directand efficient device whereby when the pressure exceeds a predetermineddegree theinlet is reduced in size and may be entirely closed; and,furthermore, to provide means whereby the parts may beadjusted to causean operation of the cutoff at any desired pressure.

Further objects and advantages of the invention will appear in thefollowing description, and the novel features thereof will beparticularly pointed out in the appended claims.

In the drawings, Figure 1 is a central section of a regulator embodyingmy invention. Fig. 2 is a view of the valve, piston, and connected partsdetached from the casing.

Similar numerals of reference indicate corresponding parts in all thefigures of the drawings.

1 designates a casing having an inlet opening 2, lateral supply openings3 and a guide 4, and 5 represents a cylindrical inlet tube threaded intothe inlet opening of the casing and provided with a perforated'flange 6for attachment to a supply pipe. Not shown. Within thisinlet pipe and ofsmaller diameter than the bore thereof, whereby its surface is out ofcontact with the walls of the pipe, is a tubular seat 7 provided withlateral ports 8, and slidably fitted in this'seat is a tubular slidevalve 9 having ports 10 which are adapted to register with the ports ofthe seat. The upper or outer end. of the seat is closed, and

. in the normal position of the valve its ports register with those ofthe seat, whereby steam or other. fluid is allowed to enter the casingthercthrough. Attached to the valve by means of a transverse pin 11 is astem 12 which carries a piston 13 which operates in the guide 4, and isexposed to the pressure of steam or other fluid within the casing.

Attached exteriorly to the casing and spanning the outer end of theguide 4 is a bracket or yoke 14, provided with a central angular opening15, in which fits slidably the angular outer extremity of the valve stemwhich projects beyond the. piston and outside of the guide in which saidpiston operates. Slidably fitted upon said angular portion of the stemis a tension plate 16, and between said tension plate and the piston isarranged a coiled resistance-spring 17, said plate being adjustable andbeing held in the desired position to cause the desired tensionv of thespring by means of the set-screws 18, provided with looknuts 19. I

The operation of the device is as follows: Steam is admitted through theinlet pipe, and after passing through the registering ports of thetubular seat a tubular slide valve is admitted to the casing, and fromthence passes to the radiator or radiators. When the pressure of steamexceeds the resistance of the resistance-spring the'piston is movedoutward and the motion thereof is communicated to the tubular valve topartially or wholly close the ports by moving those of the valve out ofregistration with those of the seat. When the pressure in the casingfalls below the strength of the resistance-spring the parts are returnedto their normal positions and steam is admittedas before.

I do not deem itnecessary to illustrate particularly the arrangement ofparts when the device is used as a back pressure valve, as it willsuffice to say that the portion of the device denominated-as an inletport communicates directly with the atmosphere, and the parts arearranged in such relative positions that the ports of the valve arenormally out of registration with those of the seat, whereby anexcessive back pressure in the casing is communicated to the piston toopen the exhaust by causing the registration of the ports of the valvewith those of the seat to permit the escape of the steam or other fluid.

It will be understood that various changes in the form, proportion andthe minor details of construction may be resorted to without departingfrom the spiritor sacrificing any of the advantages of this invention.

Having described my invention, what I of an inlet pipe5 secured in oneway of the casing, a smooth-bored tubular seat 7 arranged concentricallyin the inlet pipe with its walls out of contact therewith and providedwith lateral Openings communicating with the inlet pipe, said seat beingclosed at its outer and open at its inner end to communicate with theinterior of the casing, a tubular valve fitted to slide in said seat andprovided with lateral openings adapted to register with the openings inthe seat, said valve being open at both ends to prevent unbalancedlongitudinal pressure in either direction, a piston rod arranged axiallyin and secured to the valve by means of a transverse pin and alsoextending through and beyond the opposite arm of the casing, a piston 13carried by said rod and fitted to slide in the arm of the casingopposite to said inlet pipe and exposed to the pressure of the fluidcontained in the casing, and a tension spring connected to the pistonrod to maintain the valve normally in its open position, substantiallyas specified.

2. As an improved article of manufacture, a pressure governor for steamsupply pipes, the same comprising a casing having opposite cylindricalarms, an inletpipe communicating with one of said arms, a seat arrangedconcentrically in the inlet pipe with its Walls out of contact therewithand provided with lateral openings and a closed outer end, a tubularvalve open at both ends and mounted in said seat, the valve beingprovided with lateral openings to register with the openings in theseat, a piston rod connected atone end to the valve and extending at theother end to and through the opposite arm of the casing, a pistonsecured to said rod and fitted to slide in the arm of the casing throughwhich the rod extends, a yoke 14 secured at its extremities to the sidesof the arm of the casing and provided with a central angular guideopening to receive an angular portion at the extremity of the pistonrod, a tension plate mounted to slide upon said angular portion of thepiston rod, a tension-spring coiled upon the piston rod and hearing atits extremities, respectively, against the piston and said tensionplate, and screws threaded in perforations in the yoke and impinging attheir inner ends against said tension plate, whereby the tension of thespring may be regulated, substantially as specified.

In testimony that I claim the foregoing as my own I have hereto affixedmy signature in the presence of two witnesses.

XVILLIAM .I. MORGAN.

\Vitnesses:

A. W. FARRA R, R. U. GOLDSLEY.

